CN101742128B - Image display apparatus - Google Patents

Image display apparatus Download PDF

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Publication number
CN101742128B
CN101742128B CN2009102210643A CN200910221064A CN101742128B CN 101742128 B CN101742128 B CN 101742128B CN 2009102210643 A CN2009102210643 A CN 2009102210643A CN 200910221064 A CN200910221064 A CN 200910221064A CN 101742128 B CN101742128 B CN 101742128B
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China
Prior art keywords
electronic zoom
vision signal
resolution
processing section
processing
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Expired - Fee Related
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CN2009102210643A
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Chinese (zh)
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CN101742128A (en
Inventor
横山敏彦
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Canon Inc
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Canon Inc
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4122Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4402Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440263Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA
    • H04N21/440272Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by altering the spatial resolution, e.g. for displaying on a connected PDA for performing aspect ratio conversion
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81Monomedia components thereof
    • H04N21/8146Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics
    • H04N21/8153Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics comprising still images, e.g. texture, background image
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/02Handling of images in compressed format, e.g. JPEG, MPEG
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0407Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0414Vertical resolution change
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0407Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0421Horizontal resolution change
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00Aspects of display data processing
    • G09G2340/04Changes in size, position or resolution of an image
    • G09G2340/0407Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435Change or adaptation of the frame rate of the video stream
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/02Graphics controller able to handle multiple formats, e.g. input or output formats
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background

Abstract

The invention discloses an image display apparatus. The image display apparatus (100) is capable of receiving a first video signal and image data. The apparatus includes a first electronic zoom processing part (2) performing first electronic zoom processing on the first video signal to output a first electronic zoom processed video signal of a predetermined resolution, a video converting part (10) converting the image data into a second video signal, a second electronic zoom processing part (11) performing second electronic zoom processing on the second video signal to output a second electronic zoom processed video signal of the predetermined resolution, and a displaying part (5) displaying an image corresponding to each of the first and second electronic zoom processed video signals. The second electronic zoom processed video signal output from the second electronic zoom processing part (11) is input to the displaying part (5) through the first electronic zoom processing part (2) without being subjected to the first electronic zoom processing.

Description

Image display
Technical field
The present invention relates to a kind of image display, such as projecting apparatus, TV and monitor.
Background technology
This image display can receive from the vision signal with various resolution (XGA, SXGA, UXGA, NTSC, PAL and high-definition signal etc.) of personal computer and the output of various video-unit.Image display is converted to the vision signal of reception the signal with unique resolution that can above show in its demonstration part (such as LCD).
In addition, image display has carries out the function that electronic zoom is processed, and it comprises local expansion (amplification) processing, shows the ratio of width to height (aspect ratio) conversion process and overscanning Graphics Processing.
In addition, there is a kind of image display that can receive the view data (file data) produced by image pick up equipment (such as digital camera or video camera).This image display is converted to vision signal by the view data of reception, and vision signal is offered to its demonstration part, thereby shows thereon and the corresponding image of view data received.
In the situation that the view data received is the compressing image data of jpeg format, mpeg format etc., image display is decompressed to compressing image data, the view data of decompression is converted to vision signal, subsequently the display resolution for the demonstration part by the resolution conversion of vision signal.In other words, even for example, when the view data (vision signal) decompressed (has high-resolution, QXGA) time, it also is converted into the low resolution (such as XGA) as the display resolution that shows part, in order to can be presented at, shows on part.
In this case, the vision signal of the corresponding low resolution of display resolution with showing part being carried out to electronic zoom processes.Therefore, electronic zoom is processed and is made the resolution of the image (electronic zoom image) that will process through electronic zoom be shown as the high-resolution that is starkly lower than original image, and this has hindered taking full advantage of the original high resolution view data.
In No. 2006-303628 is speciallyyed permit disclosed Japan Patent, disclosed image display is transformed to by the signal of the mutually different a plurality of receptions of resolution the have equal resolution signal of (fixedly low resolution) at the first resolution conversion fraction when carrying out multi-screen and show.Then, described equipment is transformed to the fixedly low resolution of the signal of each reception at the second resolution conversion fraction display resolution of the demonstration part of described equipment.
Yet, specially permit disclosed image display in disclosed Japan Patent for No. 2006-303628 and can't suppress to process the deteriorated of the image resolution ratio that causes by electronic zoom.This is because the fixedly low resolution video signal from the output of first resolution conversion fraction has been carried out to the electronic zoom processing.
Summary of the invention
The invention provides a kind of image display, it can suppress by the resolution of shown electronic zoom image deteriorated than raw image data.
The present invention provides a kind of image display on the one hand as it, and it can receive the first vision signal and be not the view data of vision signal.Described equipment comprises: the first electronic zoom processing section is configured to that the first vision signal is carried out to the first electronic zoom and processes, the vision signal of processing with the first electronic zoom of output predetermined resolution; The video conversion portion, be configured to view data is converted to the second vision signal; The second electronic zoom processing section, be configured to that the second vision signal from the video conversion portion is carried out to the second electronic zoom and process, the vision signal of processing with the second electronic zoom of output predetermined resolution; Show part, be configured to show each the corresponding image the vision signal of processing with the first electronic zoom from the first electronic zoom processing section output and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section output.The vision signal of processing from the second electronic zoom of the second electronic zoom processing section output is imported into the demonstration part by the first electronic zoom processing section, and processes without the first electronic zoom.
The present invention provides a kind of image display on the other hand as it, the vision signal that it can receive the first vision signal and process from the second electronic zoom of the predetermined resolution of image input device output.Image input device comprises: the video conversion portion is configured to view data is converted to the second vision signal; With the second electronic zoom processing section, be configured to that the second vision signal from the video conversion portion is carried out to the second electronic zoom and process, the vision signal of processing to export the second electronic zoom.Image display comprises: the first electronic zoom processing section is configured to that the first vision signal is carried out to the first electronic zoom and processes, the vision signal of processing with the first electronic zoom of output predetermined resolution; And the demonstration part, be configured to show each the corresponding image the vision signal of processing with the first electronic zoom from the first electronic zoom processing section output and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section output.The vision signal of processing from the second electronic zoom of the second electronic zoom processing section output is imported into the demonstration part by the first electronic zoom processing section, and processes without the first electronic zoom.
The present invention provides a kind of image input device more on the one hand as it, and it can output to image display by vision signal.Image display can receive the first vision signal and be not the view data of vision signal.Image input device comprises: the video conversion portion is configured to view data is converted to the second vision signal; And the second electronic zoom processing section, be configured to that the second vision signal from the video conversion portion is carried out to the second electronic zoom and process, the vision signal of processing with the second electronic zoom of output predetermined resolution.The vision signal that image input device is processed the second electronic zoom outputs to image display.Image display comprises: the first electronic zoom processing section is configured to that the first vision signal is carried out to the first electronic zoom and processes, the vision signal of processing with the first electronic zoom of output predetermined resolution; And the demonstration part, be configured to show each the corresponding image the vision signal of processing with the first electronic zoom from the first electronic zoom processing section output and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section output.The vision signal of processing from the second electronic zoom of the second electronic zoom processing section output is imported into the demonstration part by the first electronic zoom processing section, and processes without the first electronic zoom.
Other side of the present invention will become clear by the embodiment described referring to accompanying drawing.
The accompanying drawing explanation
Fig. 1 is the block diagram illustrated as the configuration of the projecting apparatus of the embodiment of the present invention 1.
Fig. 2 illustrates for show the flow chart of the processing of compressing image data at embodiment 1.
Fig. 3 illustrates the flow chart that the electronic zoom for carry out 2 times of electronic zooms amplifications at embodiment 1 is processed.
Fig. 4 is illustrated in the operation part arranged in the projecting apparatus of embodiment 1.
Fig. 5 is the flow chart that the processing that relates to the electronic zoom operation is shown in embodiment 1.
Fig. 6 illustrates the flow chart that the overscanning in embodiment 1 is processed.
Fig. 7 illustrates the flow chart that the demonstration aspect ratio transformation in embodiment 1 is processed.
Fig. 8 illustrates the flow chart that the rotation in embodiment 1 is processed.
Fig. 9 is the block diagram that is illustrated in the configuration of camera in embodiments of the invention 2 and projecting apparatus.
Embodiment
Below, exemplary embodiment of the present invention is described with reference to the accompanying drawings.
[embodiment 1]
Fig. 1 illustrates the configuration as the liquid crystal projection apparatus of the image display of first embodiment of the invention (embodiment 1).
Projecting apparatus comprises: video reception part 1, and it can be by receiving video signals (the first vision signal) such as cable (not shown); Switch 18; First resolution conversion portion (the first electronic zoom processing section) 2; With the liquid crystal board 5 as forming the image formation component (image modulation element) that shows part.In addition, projecting apparatus comprises: illuminator 7, and it sends the light for irradiating liquid crystal plate 5; And projection lens (projection optical system) 6, described projection lens 6 will be for projecting the projection surface such as screen by the light of liquid crystal board 5 modulation.
In addition, projecting apparatus comprises: view data receiving unit 9 can receive compressing image data or the non-compressing image data of jpeg format, mpeg format etc." view data " refers to the data as the file format of non-video signal format in this specification.In other words, " view data " is not vision signal.In addition, " view data " comprising: Still image data, motion image data and data splitting thereof.View data is imported into view data receiving unit 9 by recording medium (such as USB storage and semiconductor memory card).
Projecting apparatus also comprises: image decompressor part 10, second resolution conversion fraction (the second electronic zoom processing section) 11, controller 15, operation part 12 and program storage 16.
(not shown from image-rendering device, such as personal computer, DVD player and TV tuner) the analog or digital vision signal that is input to video reception part 1 is imported into switch 18, then by switch 18, is imported into first resolution conversion fraction 2.
First resolution conversion fraction 2 is distinguished the form (such as resolution) of incoming video signals, carries out that resolution conversion is processed and frame rate conversion processes to produce the outputting video signal with the predetermined resolution that is suitable for driving liquid crystal board 5.Then, first resolution conversion fraction 2 is provided to liquid crystal board 5 by outputting video signal.Image-rendering device will have the vision signal input first resolution conversion fraction 2 of the various resolution from VGA (640 * 480) to UXGA (1600 * 1200).First resolution conversion fraction 2 is transformed to the incoming video signal unification of described various resolution the vision signal of XGA (1024 * 768), the display resolution (predetermined resolution) that described XGA (1024 * 768) is liquid crystal board 5.Described processing is commonly called " resolution conversion processing ".
In addition, first resolution conversion fraction 2 is in response to the command signal from electronic zoom controller 14 described below, vision signal is carried out to electronic zoom and process (the first electronic zoom is processed), comprise that local expansion (amplification) is processed, overscanning is processed, show aspect ratio transformation processing etc.
For in the situation that do not change the part expansion processing of the regional area of display screen size enlarged image, being commonly called " electronic zoom processing ".Yet in this manual, the electronic zoom processing broadly not only comprises local expansion processing, and comprise overscanning processing, the processing of demonstration aspect ratio transformation etc.In addition, 2 pairs of incoming video signals of first resolution conversion fraction are carried out the electronics shifting processing, such as rotation, process and shifting processing.Rotation is processed and need to be equal to the processing that following electronic zoom is processed, thereby it can be counted as one of electronic zoom processing.
To be separated into from the light of illuminator 7 three color of light components R, G, B by the color separation optical system (not shown).Although a liquid crystal board 5 only is shown in accompanying drawing, three liquid crystal boards for R, G, B are in fact provided.R, G, the B light component by three liquid crystal boards 5 for R, G, B, modulated respectively are to carry out color combination by the color combination optical system (not shown), and the light of combination enters projection lens 6, to be projected onto projection surface.Coloured image is presented in projection surface thus.
Liquid crystal board 5 can be transmissive liquid crystal panels and reflective liquid crystal plate.Can use other image formation component (for example, micro-mirror device) to substitute liquid crystal board.
The processor unit (comprise CPU, RAM, ROM etc.) controlled by program constructed controller 15.Controller 15 is controlled the control to whole projecting apparatus according to the computer program be stored in program storage 16.
Electronic zoom controller 14 in controller 15 is controlled the part to vision signal of being carried out by first resolution conversion fraction 2 according to the electronic zoom operation signal from operation part 12 inputs and is enlarged processing.The electronic zoom operation signal specifies in and local enlarges expansion multiplying power in processing and by extended topography zone.Electronic zoom controller 14 is also controlled the overscanning of being carried out by first resolution conversion fraction 2 and is processed, shows aspect ratio transformation processing etc.
Carry out construct image decompression part 10 by the controlled processor unit of program (comprising CPU, RAM, ROM etc.).In the situation that are compressing image datas by the view data of view data receiving unit 9 inputs, 10 pairs of compressing image datas of image decompressor part are decompressed (expansion) to produce non-compressing image data.In addition, image decompressor part 10 is as the video conversion portion, for view data being converted to the vision signal had with the view data equal resolution, vision signal is outputed to second resolution conversion fraction 11.
Second resolution conversion fraction 11 has and the essentially identical function of first resolution conversion fraction 2: carry out resolution conversion processing, frame rate conversion processing, electronic zoom processing (the second electronic zoom is processed) and electronics shifting processing.Yet the vision signal that is input to second resolution conversion fraction 11 is the vision signal converted from view data by image decompressor part 10.Electronic zoom controller 14, in response to from operation part 12 input electronic zoom operation signals, is controlled at the part expansion processing of 11 pairs of vision signals of second resolution conversion fraction.In addition, electronic zoom controller 14 is controlled at the overscanning of carrying out in second resolution conversion fraction 11 and processes, shows aspect ratio transformation processing etc.
Vision signal from second resolution conversion fraction 11 is imported into first resolution conversion fraction 2 by switch 18.First resolution conversion fraction 2 is transformed to the vision signal of reception as mentioned above uniformly as the vision signal of the XGA (1024 * 768) of the display resolution of liquid crystal board 5.In the same way, second resolution conversion fraction 11 also will be output to the vision signal that the video signal conversion of first resolution conversion fraction 2 is the XGA of the display resolution as liquid crystal board 5 in advance.In other words, second resolution conversion fraction 11 is no matter the resolution of the view data of inputting by view data receiving unit 9 how, is all exported the vision signal of XGA.
Fig. 4 illustrates the example of operation part 12.Operation part 12 forms by operation panel and for the remote controller of the operation from the external control projecting apparatus.Operation part 12 will with the corresponding operation signal input control of user's operation device 15.
Operation part 12 shown in Fig. 4 is provided with " input " key (input switch key), and the user selects to be imported into the signal of projecting apparatus from vision signal and view data by this key.In addition, operation part 12 is provided with " zoom+" and " zoom-" key, and the user selects the local expansion multiplying power enlarged in processing by them.In addition, operation part 12 be provided with " on ", D score, " left side ", " right side " key, the user by they select the topography zone (that is, the user along upwards, direction downwards, left and to the right moves local image-region).
Next, with reference to Fig. 2, the processing of carrying out projection (demonstration) for the corresponding image of the compressing image data of the projecting apparatus to being input to this embodiment is described.Controller 15 is carried out described processing according to the computer program be stored in program storage 16.
Step 301 (below, be abbreviated as " S "), when view data is selected in the operation of the input switch key by operation part 12, controller 15 is controlled switch 18, so that the signal input line that it arrives projecting apparatus is set to view data input line 2A → 2B → 2C.The input line of label 2A indication from view data receiving unit 9 to image decompressor part 10.The input line of label 2B indication from image decompressor part 10 to second resolution conversion fraction 11.Label 2C indication is 18 input line from second resolution conversion fraction 11 to switch.
When vision signal is selected in the operation of the input switch key by operation part 12, controller 15 is controlled switch 18, so that the signal input line that it arrives projecting apparatus is set to vision signal input line 1A.Vision signal input line 1A is used as from video reception part 1 to switch 18 input line.
Next, at S302, view data receiving unit 9 is read the compressing image data be recorded in recording medium.
Next, at S303, controller 15 is controlled image decompressor part 10 by the image decompressor controller 17 be included in wherein, so that it is decompressed to compressing image data, to produce non-compressing image data.In this embodiment, non-compressing image data is the data such as the file format of the bitmap format with resolution QXGA (2048 * 1536).Projecting apparatus can't directly show the non-compressing image data of QXGA.Usually, the view data of QXGA is the high resolution image data that can't be received by general projectors.Therefore, image decompressor part 10 is converted to the non-compressing image data of QXGA as the vision signal (the second vision signal) of the QXGA of the equal resolution of non-compressing image data.
At S304, the video signal conversion of the QXGA that second resolution conversion fraction 11 will be inputted from image decompressor part 10 is the vision signal as XGA (1027 * 768) resolution of the display resolution of liquid crystal board 5, subsequently by its output.
Therefore, even the view data of input (reception) has the resolution higher than XGA, second resolution conversion fraction 11 must be also the XGA as the display resolution of liquid crystal board 5 using resolution conversion.
The situation that this embodiment describes is that image decompressor part 10 is transformed to vision signal by view data, and 11 pairs of vision signals of second resolution conversion fraction are carried out resolution conversion.Yet, can adopt following processing.Image decompressor part 10 is inputted second resolution conversion fraction 11 by view data, and 11 pairs of view data of second resolution conversion fraction are carried out resolution conversion.Then, second resolution conversion fraction 11 will be transformed to vision signal through the view data of resolution conversion.In this case, second resolution conversion fraction 11 is as the video conversion portion.
Next, at S305, the pattern of controller 15 first resolution conversion fractions 2 is set to not carry out the pattern of resolution conversion.As a result, from the XGA vision signal of second resolution conversion fraction 11 in the situation that do not change and output to liquid crystal board 5 by switch 18 and first resolution conversion fraction 2.Be projected thus and be shown in projection surface with the corresponding image of XGA vision signal.
Next, with reference to Fig. 3 describe with this embodiment in electronic zoom one of process corresponding local expansion and process.To describe by operation part 12 and will enlarge the situation that multiplying power (electronic zoom multiplying power) is set to 2 times (below be abbreviated as " x ").Controller 15 is also carried out described processing according to the computer program be stored in program storage 16.
Processing from S301 to S303 is identical with the processing from S301 to S303 in Fig. 2.At S303, as mentioned above, compressing image data is decompressed, and to produce the non-compressing image data such as the file format of the bitmap format with resolution QXGA (2048 * 1536), non-compressing image data is converted into the vision signal of QXGA subsequently.
At S308, owing to enlarging multiplying power, be 2x, so the electronic zoom controller 14 in controller 15 makes second resolution conversion fraction 11 shear the topography zone of (clip) (extraction) as the XGA (1027 * 768) of a half-resolution of each direction in QXGA video signal level and vertical direction.
Next, at S305, second resolution conversion fraction 11 outputs to first resolution conversion fraction 2 by switch 18 by the vision signal in the topography zone of shearing.First resolution conversion fraction 2 outputs to liquid crystal board 5 in the situation that it is not carried out to the resolution conversion processing by the vision signal of XGA.As a result, with at second resolution conversion fraction 11, through electronic zooms, process the corresponding electronic zoom image of vision signal that the resolution of (local expansion processed) is XGA and be projected and show.The vision signal of having processed through electronic zoom in second resolution conversion fraction 11 is corresponding to " vision signal that the second electronic zoom is processed ".
With situation about in first resolution conversion fraction 2, the vision signal execution electronic zoom of the QXGA from the conversion of QXGA high resolution image data being processed, compare, above-mentioned processing makes the demonstration of electronic zoom image have less resolution deteriorates with respect to view data.
In second resolution conversion fraction 11, when the expansion multiplying power in electronic zoom is processed is 2x, 3x and 4x, the electronic zoom image is as follows for the resolution deteriorates rate of non-compressing image data:
Enlarge multiplying power: non-compressing image data (QXGA) resolution in the horizontal direction
→ (1) is sheared in electronic zoom is processed
The resolution (XGA) of liquid crystal board is arrived in → (2) conversion (amplification) in electronic zoom is processed
→ electronic zoom image is for the resolution deteriorates rate of non-compressing image data
2x:2048
→(1)2048/2=1024
→ (2) are amplified to 1024 (without changing) from 1024
→1/2
3x:2048
→ (1) 2048/3=approximate 683
→ (2) are amplified to 1024 (approximate 1/1.5) from 683
→ approximate 1/4.5
4x:2048.
→(1)2048/4=512
→ (2) are amplified to 1024 (1/2) from 512.
→1/8
Form with it contrast, in conventional arrangement, in the first resolution conversion fraction, the vision signal of the XGA from the non-compressing image data conversion of QXGA is carried out to electronic zoom and process.When the expansion multiplying power in electronic zoom is processed is 2x, 3x and 4x, the electronic zoom image is as follows for the resolution deteriorates rate of non-compressing image data:
2x:2048.
→ (1) transforms to 1024 (1/2) from 2048
→(2)1024/2=512
→ (3) are amplified to 1024 (1/2) from 512.
→1/8
3x:2048.
→ (1) transforms to 1024 (1/2) from 2048
→ (2) 1024/3=approximate 341
→ (3) are amplified to 1024 (approximate 1/3) from 341
→ approximate 1/18
4x:2048
→ (1) transforms to 1024 (1/2) from 2048
→(2)1024/4=256
→ (3) are amplified to 1024 (1/4) from 256
→1/32
Described in this embodiment, in second resolution conversion fraction 11, high resolution image data is carried out to high-resolution deteriorated with respect to view data of resolution that electronic zoom processes the electronic zoom image that can suppress actual displayed.This has realized projection and demonstration that the high-quality electronic zoom image to obtaining from high resolution image data (for example,, by the view data that can carry out digital camera that high-definition picture picks up and produce) carries out.
Below, the processing of the electronic zoom operation related in operation part 12 is described with reference to Fig. 5.This processing is also carried out according to the computer program be stored in program storage 16 by controller 15.
At first, at S601, when pressing " zoom+" or " zoom-" key in operation part 12, electronic zoom controller 14 starts electronic zoom to be processed.Electronic zoom controller 14 arranges electronic zoom multiplying power (expansion multiplying power) according to the operation of " zoom+" or " zoom-" key.
Next, at S602, input switching part 19 determines which in view data (secondary signal) and vision signal (first signal) is chosen as input signal by the input switch key in operation part 12.If vision signal is selected, processes and proceed to S605.If view data is selected, processes and proceed to S603.
At S605, the electronic zoom that electronic zoom controller 14 has to 2 indications of first resolution conversion fraction the electronic zoom multiplying power arranged in S601 is processed.2 pairs of incoming video signals of first resolution conversion fraction (the first vision signal) are carried out the electronic zoom of the electronic zoom multiplying power based on indication and are processed.Then, process and proceed to S604.
The vision signal of having processed through electronic zoom in first resolution conversion fraction 2 is corresponding to " vision signal that the first electronic zoom is processed ".
Then, at S604, first resolution conversion fraction 2 outputs to liquid crystal board 5 by vision signal (vision signal that the first or second electronic zoom is processed), and the resolution of described vision signal processes by electronic zoom the display resolution that is transformed to liquid crystal board 5.
On the other hand, at S603, the electronic zoom that electronic zoom controller 14 has to 11 indications of second resolution conversion fraction the electronic zoom multiplying power arranged at S601 is processed.As use as described in Fig. 3, the electronic zoom that 11 pairs of incoming video signals (the second vision signal) from the view data conversion of second resolution conversion fraction are carried out the electronic zoom multiplying power based on indication is processed.Then, process and proceed to S604.
Although above description for be that the part of processing as a kind of electronic zoom enlarges and processes, electronic zoom is processed and is comprised that above-mentioned overscanning processes and show that aspect ratio transformation processes.
Fig. 6 illustrates the flow process that overscanning is processed.
At S701, when operation " menu " key in operation part 12, by liquid crystal board 5, menu image is presented in projection surface.Menu image comprises demonstration the ratio of width to height switch labels.The selection that shows the ratio of width to height switch labels have ever made the instruction of scan process to controller 15.Controller 15 starts overscanning to be processed in response to described instruction.Overscanning is processed and will be presented on whole liquid crystal board 5 with the corresponding central side of for example 90% input picture (vision signal) zone (below, be called " middle section ").The flow process that overscanning is processed is processed basic identical with the expansion of the part from S602 to S605.Show middle section, to replace and the corresponding outer peripheral areas of input picture that is not presented at 10% on liquid crystal board 5 widely.Overscanning is processed and is prevented from being presented at the noise occurred in outer peripheral areas.
Fig. 7 illustrates the flow process that shows that aspect ratio transformation is processed.
At S801, when operating " the ratio of width to height " keys in operation part 12 and producing the switching command that shows the ratio of width to height thus, controller 15 starts to show the aspect ratio transformation processing according to the appointment the ratio of width to height be included in switching command.
To briefly describe and show the aspect ratio transformation processing.The ratio of width to height of input picture (below, be called " input the ratio of width to height ") can be set to various values.For example, input the ratio of width to height is 16: 9 in high definition TV, or in NTSC, is 4: 3.On the other hand, the ratio of width to height of the demonstration image of projecting apparatus can be selected from 16: 9 and 4: 3.Because the difference between input the ratio of width to height and demonstration the ratio of width to height produces the disappearance that shows image or reduces the size that shows image, so shear a part of input picture (topography zone), amplify and show.In other words, show that aspect ratio transformation processing execution and the part from S602 to S605 enlarge the essentially identical processing of processing of processing.
Fig. 8 illustrates the flow chart that rotation is processed.
At S901, when from operation part 12 indications, rotating processing, controller 15 starts the rotation processing according to the appointment anglec of rotation be included in the rotation processing instruction.Rotation is processed and will be shown image to the right and 90-degree rotation left, and by its (up and down) Rotate 180 degree.
Because the horizontal and vertical resolution that changes input picture is processed in rotation, thus a part of input picture (topography zone) is sheared to be amplified and to show, thus prevent to show the disappearance of image and show reducing of picture size.In other words, the rotation processing execution enlarges the essentially identical processing of processing with the part from S602 to S605, although added the processing for image rotating to it.
[embodiment 2]
Fig. 9 illustrates the configuration as the static camera of number (image pick up equipment) of the configuration of the projecting apparatus of second embodiment of the invention (embodiment 2) and the same image input device as embodiment 2.The projecting apparatus 100 ' of this embodiment comprising: video reception part 1, switch 18, first resolution conversion fraction 2, operation part 12, liquid crystal board 5, projection lens 6 and program storage 16, they are identical with the parts in the projecting apparatus 100 of embodiment 1.The projecting apparatus 100 ' of this embodiment comprises controller 15 ', and it is not included in the image decompressor controller 17 arranged in the controller 15 of projecting apparatus 100 of embodiment 1.
On the other hand, the camera 101 in this embodiment comprises identical view data receiving unit 9, image decompressor part 10 and the second resolution conversion fraction 11 of those parts in the projecting apparatus 100 with embodiment 1.In addition, camera 101 comprises image producing part 30 and image compression part 31.
Carry out the image pick-up element (not shown, such as ccd sensor or cmos sensor) of opto-electronic conversion and carry out construct image generating portion 30 from the image processing section (not shown) that the output of image pick-up element produces view data (file format data) by the object images to forming by image pickup camera lens (not shown).
31 pairs of view data that produced by image producing part 30 of image compression part are compressed, to produce compressing image data.Compressing image data is imported into view data receiving unit 9, and is sent to image decompressor part 10 to be decompressed.Consequent non-compressing image data is converted into vision signal (the second vision signal) by image decompressor part 10.Vision signal is imported into second resolution conversion fraction 11.
Camera 101 is connected with projecting apparatus 100 ' by cable 20 radio communication of infrared communication (or such as).Electronic zoom controller 14 in projecting apparatus 100 ' is controlled second resolution conversion fraction 11 by cable 20.
The vision signal (that is the vision signal of, processing from the second electronic zoom of view data conversion) that in second resolution conversion fraction 11 in camera 101, predetermined resolution was processed and had to the experience electronic zoom is output to liquid crystal board 5 by the switch 18 projecting apparatus 100 ' and first resolution conversion fraction 2.
In this embodiment, the second resolution conversion fraction in camera 101 11 is carried out the electronic zoom processing of the high resolution image data to producing in camera 101.This can suppress by the resolution of the electronic zoom image of projecting apparatus 100 ' actual projected and demonstration deteriorated with respect to the resolution of view data.Therefore, this embodiment has realized from projection and demonstration by carrying out the high-quality electronic zoom image that view data that camera 101 that high-definition picture picks up produces obtains.
Although this embodiment has described the situation that digital static camera is used as image input device, such as the miscellaneous equipment of video camera, DVD device and personal computer, also can be used as image input device.
In addition, although above-described embodiment has been described projecting apparatus, other embodiments of the invention comprise other image display, such as TV and monitor.
Although described the present invention with reference to exemplary embodiment, it should be understood that, the present invention is not limited to disclosed exemplary embodiment.The scope of claims will be consistent with the most wide in range explanation, thereby comprise all this modification, the 26S Proteasome Structure and Function be equal to.

Claims (6)

1. an image display (100 '), it can receive the first vision signal and the view data of vision signal not, and described equipment comprises:
Show part (5), be configured to show image;
The first electronic zoom processing section (2), being configured to that the first vision signal is carried out to the first electronic zoom processes, the vision signal of processing with the first electronic zoom of output predetermined resolution, the vision signal that the first electronic zoom of described predetermined resolution is processed be have lower than the resolution of the first vision signal and corresponding to the vision signal of the predetermined resolution of the described display resolution that shows part (5);
Video conversion portion (10), be configured to view data is converted to the second vision signal, and the resolution of described the second vision signal is identical with the resolution of described view data;
The second electronic zoom processing section (11), being configured to that the second vision signal from the video conversion portion is carried out to the second electronic zoom processes, the vision signal of processing with the second electronic zoom of output predetermined resolution, the vision signal that the second electronic zoom of described predetermined resolution is processed be have lower than the resolution of the first vision signal and corresponding to the signal of the described predetermined resolution of the described display resolution that shows part (5); And
Operation part (12), be configured to from described the first vision signal or described view data to select to be transfused to the signal of described image display,
Wherein, each corresponding image the vision signal that described the first electronic zoom that shows that part (5) is configured to show and export from the first electronic zoom processing section is processed and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section output
It is characterized in that,
Described image display (100 ') comprises controller (15), described controller (15) is configured to when select view data when being transfused to the signal of described image display by described operation part, carry out and control with the switching signal route, so that view data is successively by described video conversion portion, described the second electronic zoom processing section, then input the first electronic zoom processing section
The vision signal that to process from the second electronic zoom of the second electronic zoom processing section (11) output is input to described demonstration part (5) by the first electronic zoom processing section (2), and processes without the first electronic zoom,
Wherein, each in described the first electronic zoom processing and described the second electronic zoom processing is in the situation that do not change the part of the regional area of display screen size enlarged image, enlarging processing.
2. image display as claimed in claim 1,
Wherein, the view data that is input to described video conversion portion is compressing image data, and
Wherein, described video conversion portion (10) is arranged to compressing image data is decompressed, and with the view data by decompression, is converted to the second vision signal.
3. image display as claimed in claim 1,
Wherein, described equipment comprises: projection optical system, and for showing that image projection that part show is to projection surface.
4. an image display (100 '), the vision signal that it can receive the first vision signal and process from the second electronic zoom of the predetermined resolution of image input device (101) output, described image input device comprises: video conversion portion (10), be configured to view data is converted to the second vision signal, described the second vision signal has the resolution identical with the resolution of described view data; And the second electronic zoom processing section (11), being configured to that the second vision signal from the video conversion portion is carried out to the second electronic zoom processes, the vision signal of processing to export the second electronic zoom, the vision signal that described the second electronic zoom is processed is the signal with described predetermined resolution, and this image display (100) comprising:
The first electronic zoom processing section (2), be configured to that the first vision signal is carried out to the first electronic zoom and process, the vision signal of processing with the first electronic zoom of exporting described predetermined resolution;
Operation part (12), be configured to select to be transfused to from the vision signal that described the first vision signal or described the second electronic zoom are processed the signal of described image display, and
Show part, be configured to show each the corresponding image the vision signal of processing with the first electronic zoom from the first electronic zoom processing section output and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section output,
It is characterized in that,
Described image display (100 ') comprises controller (15), described controller (15) is configured to when the vision signal of selecting the second electronic zoom to process by described operation part when being transfused to the signal of described image display, carry out and control with the switching signal route, so that the vision signal that described the second electronic zoom is processed is inputted the first electronic zoom processing section, and, the vision signal that to process from the second electronic zoom of the second electronic zoom processing section output is input to described demonstration part by the first electronic zoom processing section, and process without the first electronic zoom,
Wherein, described predetermined resolution is lower than the resolution of described the first vision signal and corresponding to the described display resolution that shows part, and
Wherein, each in described the first electronic zoom processing and described the second electronic zoom processing is in the situation that do not change the part of the regional area of display screen size enlarged image, enlarging processing.
5. an image input device (101), it can output to vision signal image display (100 '), described image input device can receive the not view data of vision signal, described image display can receive the first vision signal and, from the vision signal of described image input device, described image input device (101) comprising:
Video conversion portion (10), be configured to view data is converted to the second vision signal, and described the second vision signal has the resolution identical with described view data; And
The second electronic zoom processing section (11), be configured to that the second vision signal from video conversion portion (10) is carried out to the second electronic zoom and process, the vision signal of processing with the second electronic zoom of output predetermined resolution,
Wherein, the vision signal that described image input device (101) is processed the second electronic zoom outputs to described image display (100 '), and
Wherein, described image display (100 ') comprising:
The first electronic zoom processing section (2), be configured to that the first vision signal is carried out to the first electronic zoom and process, the vision signal of processing with the first electronic zoom of output predetermined resolution;
Operation part (12), be configured to select to be transfused to from the vision signal that described the first vision signal or described the second electronic zoom are processed the signal of described image display; And
Show part (5), each corresponding image the vision signal that the vision signal that the first electronic zoom that is configured to show and export from the first electronic zoom processing section is processed and the second electronic zoom of exporting from the second electronic zoom processing section of described image input device are processed
Controller (15), described controller (15) is configured to when the vision signal of selecting the second electronic zoom to process by described operation part when being transfused to the signal of described image display, carry out and control with the switching signal route, the vision signal of processing with the second electronic zoom that will export from the second electronic zoom processing section (11) of described image input device is input to described demonstration part (5) by the first electronic zoom processing section (2), and process without the first electronic zoom
Wherein, described predetermined resolution is lower than the resolution of described the first vision signal and corresponding to the described display resolution that shows part, and
Wherein, each in described the first electronic zoom processing and described the second electronic zoom processing is in the situation that do not change the part of the regional area of display screen size enlarged image, enlarging processing.
6. the signal processing method in an image display (100 '), this image display can receive the first vision signal and be not the view data of vision signal, described equipment comprises the first electronic zoom processing section (2), video conversion portion (10), the second electronic zoom processing section (11), operation part (12), shows part (5) and controller (15), said method comprising the steps of:
Making the first electronic zoom processing section (2) carry out the first electronic zoom to the first vision signal processes, the vision signal of processing with the first electronic zoom that produces predetermined resolution, the vision signal that the first electronic zoom of described predetermined resolution is processed be have lower than the resolution of the first vision signal and corresponding to the vision signal of the predetermined resolution of the described display resolution that shows part (5);
Make video conversion portion (10) that view data is converted to the second vision signal, described the second vision signal has the resolution identical with described view data;
Making the second electronic zoom processing section (11) carry out the second electronic zoom to the second vision signal from the video conversion portion processes, the vision signal of processing with the second electronic zoom that produces predetermined resolution, the vision signal that the second electronic zoom of described predetermined resolution is processed be have lower than the resolution of described the first vision signal and corresponding to the signal of the predetermined resolution of the described display resolution that shows part (5);
Make described operation part (12) select to be transfused to the signal of described image display from described the first vision signal or described view data; And
Make to show that part (5) shows each the corresponding image the vision signal of processing with the first electronic zoom from the first electronic zoom processing section (2) output and the vision signal of processing from the second electronic zoom of the second electronic zoom processing section (11) output
It is characterized in that,
When select view data when being transfused to the signal of described image display by described operation part, described controller (15) is carried out and is controlled with the switching signal route, so that view data is successively by described video conversion portion, described the second electronic zoom processing section, then input the first electronic zoom processing section, and
The vision signal that to process from the second electronic zoom of the second electronic zoom processing section (11) output is input to described demonstration part by the first electronic zoom processing section (2), and processes without the first electronic zoom,
Wherein, each in described the first electronic zoom processing and described the second electronic zoom processing is in the situation that do not change the part of the regional area of display screen size enlarged image, enlarging processing.
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